Improvement in axle-box



"D. DALZBLL.

Axle BOX. 110,106,469. Patented Aug.16,1870.

N. PEIERS. FHOTO-LITMOGRAPHER. wASmNGTDN, D. l:A

@anni 619mm.'

DAVID DALZELL, OF SOUTH EGRIIIQQLMASSACHUSETIS.

Letters .Patent N 106,469, lated August 16, 1870.A

i v IMPROVEMENT IN .AXLEl-BOX.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern.'

Be it known that I, DAVlD DALZELL, of South Egremont, in the county ofBerkshire and State of' Massachusetts, have invented a new and improvedA xle-Box, for the hubs of wheels for carriages, wagons, 85e., and whichI term a Gom pound Axle-Box and I do hereby declare that the followingis a full, clear, and exact description of the same, reference being hadto the accompanying` drawing and to the lettersiot' ret'- erence markedthereon making part of this specitication, in which- Figure 1 is a sideview of my invention.

Figure 2, a longitudinal central section of the same.

Figure 3, an end view ofthe same.

Similar letters of reference indicate corresponding partsin the severalgures.

lhe object of this invention is to obtain all the advanta ges derivedfrom an entire wrought-iron and casehardened axle-box at a cost farbelow that attending the original mode of manufacture.

This result is accomplished by dispensing entirely with forging, which Iam enabled to do by-having the box com posed of two parts, one part,that which runs or turns on the arm ot' the axle, and is the onlyportion subjected to wear, being of wrought iron, casehardened, and theother part, which is subjected tono wear, and which has hitherto beenattended with great trouble and expense in forging, beingr of cast-iron,lnalleableized.

These two parts are connected by a screw-joint, as hereinafter setfort-h.

To enable those skilled in the art to fu'lly under- V stand andconstruct my invention I will proceed to deleast expensive, but do notconfine myself to it, re serving the right to use wronght-iron in anyform.

The exterior of this part A is turned of slightly taperform, and theinterior is reamed out as true as may be, and made to conform to theshape of the arm of the' axle, on which it is designed to turn, saidpart A be ing case-hardened, to obtain the requisite degree or hardnessto resist weau The inner part of A is turned down a suitable distance ofits length, to form a shoulder, a, and a screwthread, l), is cut on theexterior of the turned-down portion, to admit of the outer part' of theother portion, designated by B, being screwedl` upon it, (see g. 2.) i

I he portion B is of cast-iron, malleableized, and is cast with ears cc, to prevent the box from turning within the hub, and in order toprevent the two parts being casually nnscrewed from each other, a key orpin may be inserted in a seat or in a hole drilled in the adjoining endsot' said parts. I do not think, how- -What Irclaim as new, and desire tosecure by Lctters Patent, is-

An axle-box for the hubs of carriage and wagonwheels, constructed of twoparts, A B, one of' which is ot' wrought and the other of cast metal,the two parts being connected together substantially as and for thepurpose specified.

Vitnesses: DAVID, DALZELL.

HORACE S. SHAILEIGH, D. DALZELL, Jr.

